Spindle mounting



June 3, 194.7- s. c. NELSON srmnu: mum-me Filed Aug. 21, 1945 II.VVENT.OR.

BY @Al 0,

Patented June 3, 1947 SPINDLE MOUNTlNG Seddon 0. Nelson, Front Royal, Va., assignor to American Viscose Corporation, Wilmington, Del., a corporation of Delaware.

Application Augustv 21, 1945, Serial No. 611,813

10 Claims. (01. 57 -134) This invention relates to an improved mounting for a spinning and twisting device, and is particularly concerned with the lubrication of ball or roller bearings therein. The present application concerns an improvement in the type of device shown inmy application Serial No. 580,409, filed March 1, 1945. v

This invention provides improved lubrication of spinning and twisting deviceswhich involve relative rotation between a spindle and a bearing housing between which ball or roller bearings are provided to reduce friction to a minimum. The invention is particularly applicable to spindles which are vertical or inclined to the horizontal so that the ordinary methods of ring lubridescribed in my copending application. The spindle is rotatably mounted in the supporting bracket or arm 8 which is formed with an annular bearing housing 9 for receiving the hollow spindle. Ball bearings H) and II and theirassociated races are provided between the housing! and the spindle 2 at spaced points axially of the spindle 2. There is fixedly secured to the lower end of the spindle cation and wick lubrication are ineffective. A particular object oithe invention is to provide effective lubrication of ball or roller bearings.

which are spaced axially along such an inclined or vertical spindle whether the bearing housing rotates about a stationary spindle or whether the spindle is rotated within a bearing housing which is held stationary. The specific objects, features and advantages of the invention will be apparent from the drawing and the description thereof hereinafter.

In the drawing,which is illustrative a the m vention- Figure 1 is a vertical elevation, partiallybroken away and in section; and

Figure 2 is a transverse section line 11-11 of Figure 1.

The invention will hereinafter be described in taken on the connection with a form of twister shown in the above mentioned copending application which necessitates the use of a hollow spindle for the passage done or more yarns being twisted or doubled, but it is to be understood that the hollow character of the spindle is not essential in ,sofar as the lubrication system and mounting arrangement herein described are concerned. That is, the same lubrication system may be applied to a spinning and twisting device of the type which does not require the use of a hollow spindle and may be used in such a device in which the spindle is held stationary, whereas the bearing housing supporting a package-holder as hereinafter described is rotated.

As shown in the drawing, the spinning and twisting device comprises ah-ollow spindle 2 which carries a pulley or sheath 3 and has an extension 4 carrying a plurality of idling rolls 5, 6

and! for the purpose of equalizing the speedof withdrawal of a pluralityof yarns from the lower end of the hollow spindle, a more particularly a' container having a cup-like shape torreceiving'a supply of oil. A portion of the housing 9 which may take the form of a flange [3 extends into thecup-like housing 12 and a passage l4 extends to the outer periphery oi. the flange I 3 and communicates with an annular chamber I! by meansof a connecting passage l8. During the rotation of the container l2, which during operation of the device, the oil therein is thrown against the outer wall thereof, where it is scooped through the flange I3 by means of the passage l4 and forced into the annular chamber IS in the manner more particularly described hereinafter.

Within the annular chamber I5 there is provided means for feeding oil to the bearings. This means comprises a sleeve l1 secured to the h0using '9 at its base and spaced radially from the circumference of the spindle; A sleeve l8 of wicking material'such as felt, is stretched around the sleeve I! and bears against a sloped surface llformed on the outer periphery of the spindle just below the upper bearing II. A collar 20 serves to hold the wick in contact with the tapered surface l9. By this means, oil is directed in a thin film to the taperedsuriace and centrifugal force and capillary attraction cause the oil to move to the upper bearing, whereas gravitational,

adhesion, and surface tension effects cause-a portion 01 the oil to proceed down the spindle to the lower bearing. A cap 2| may be threaded over the bearing housing and has a bore 22 which allows free relative rotation between it and the spindle 2.

There is provided fixed to the spindle above this supporting system a'container 32 for oil preferablyof cup-like shape as in the mounting below. A hearing housing 33 encloses an annular chamber about the hollow spindle and spaced ball bearings 35 and :6. permit relative rotation be-' tween the hollow spindle and the housing 33. Thehousing 33 has means, in the form of a flange 3 through which a passage 38 is provided for scooping oil thrown centrifugally to the outer wall of the container 32 and directing it into the annular channel 34. A sleeve 38a secured to the housing at its base and spaced radially from the occurs spindle carries a sleeve 39 of wicking material which is held against the bottom of a tapered portion 40 of the spindle by means of the collar 4| analogous to the structure below.

The housing 33 as shown has fixedly secured thereto a shell 42 which may have a removable cover 43. A weight 44 attached to the shell 42 serves to prevent"rotation of the housing 33 during rotation of the spindle. As shown, the housing 33 supports a wound package 45 carried by a cone 48 which fits over the sleeve 33. A hollow thread-guiding tube 4'! extends through the nose of the cone 46, and is secured to the sleeve 33, so that it is in alignment with the hollow bore of the spindle but out or contact therewith. Spring tension meansmay be provided as described in my copending application for tensioning the yarn as it proceeds from the outer windfor imparting relative rotation housing.

ings of the package 45 through the tube 41 to 5i having suitable projections 52 to engage the yarn.

During rotation of. the spindle, the oil "in the cup-like containers l2 and 32, is thrown against the" internal peripheral walls thereof and rotation of the oil with the container causes a portion of it to be scooped into the passages I4 and 38 respectively. This directs the oil into the annular chambers i5 and 34 in which the wicking means carries it" to the juncture of the tapered and cylindrical portions of the external periphery of the hollow spindle. Atthisjuncture, the oil film divides, a portion thereof .fiowing downward along the cylindrical spindle by gravity until it reaches the lower bearings Ill and respectively. Other portions are caused to flow along the tapered surfaces l9 and by centrifugal force .until they flow into the bearings ii and '38 respectively. Uponstoppage of the spindle, lubricant is retained by th wicking sleeves in readiness to feed lubricant immediately upon starting the bearing again. Any excess lubricant remaining in the annular chambers l5 and 34 largely flows back into the containers i2 and I3- respectively. V

The present invention thus provides a simple and efficient lubricating system for assuring an adequate but not excessive supply of lubricant, such as oil, to ball or roller bearings which are spaced widely apart along a spindle inclined sharply to the horizontal. .It is to be understood that the description hereof is entirely illustrative and that changes and variations may be made without departing from the spirit of the invention as described in the appended claims.

I claim:

1. A mounting for a spinning and twisting device comprising a spindle, a container for oil fixed to the spindle, a bearing housing about the spindle for supporting a wound package, axially spaced rolling contact bearings between the spindle and housing for permitting relative rotation therebetween, an annular chamber within the housing between the bearings, a passage through the housing communicating with the containerv and the annular chamber, means within the annular chamber for feeding oil therein to the spindle for supporting a wound package, axially 4 bearings, and means for imparting relative rotation to the spindle and housing.

2. A mounting for a spinning and twisting device comprising a spindle, a container for oil fixed to the spindle, a bearing housing about the spindle for supporting a wound package, axially spaced rolling contact bearings between the spindleand housing for permitting relative rotation therebetween, an annular chamber within the housing between the bearing, a passage through the housing communicating with the container and the annular chamber, the container and housing being constructed and arranged for forcing oil through the passage into the annular chamber, means within the annular chamber for feeding oil therein to the bearings, and means to the spindle and 3. A mounting for a spinning and twisting device comprising a spindle, a container torpil 1 fixed to the spindle, a bearing housing about the spaced rolling contact bearings between the spindle and housing for permitting relative rotation therebetween, an annular chamber within the housing between the bearings, a passage through the housing communicating with the container and the annular chamber, the container and housing being constructed and arranged for forcing oil through the passage into the annular chamber, means within the annular chamber for feeding oil therein to the bearings comprising a wicking sleeve having an upper portion in contact with the spindle and a portion of the spindle periphery tapering outwardly from the point 01' contact with the wicking sleeve to a point adage, axially spaced rolling contact bearings be- Jacent the upper roller bearing.

4. A mounting for a spinning and twisting device comprising a spindle, a cup-like container for oil fixed to the spindle, a bearing housing about the spindle for supporting a wound packtween the spindle and housing for permitting relative rotation therebetween, an annular cham ber within. the housing between the bearings, a flange on the housing extending into the container, a passage through the fiangecommunivcating with the annular chamber and the container adjacent its internal peripheral wall, means within the annular chamber for feeding oil therein tothe bearings, and means for imparting relative rotation to the spindle and housmg.

' 5. A mounting for a spinning and twisting device comprising a spindle, a cup-like container for oil fixed to the spindle, a bearing housing about the spindle for supporting a wound package, axially spaced rolling' contact bearings between the spindle and housing for permitting relative rotation therebetween, an annular chamber within the housing between the bearings, a

flange on the housing extending into the container, a passage through the flange communicating with the annular chamber and with the container adjacent its internal peripheral wall,

for oil fixed to the spindlepa bearing housing about the spindle for supporting a wound package, means tending to maintain the bearing houslug-stationary, axially spaced ball bearings between the spindle and housing for permitting 5 relative rotation therebetween, an annular chamber within the housing between the bearings, a

passage through the housing communicating with the container and the annular chamber, means within the annular chamber forfeeding oil there- 10 in to the bearings, and means for rotating the spindle. a p

7. A mounting for a spinning and twisting device comprising a rotatable spindle: a container !or oil fixed to the spindlepa bearing housing u about the spindle for supporting a wound pack-'1 age, means tending to maintain the bearing housing stationary, axially spaced ball bearings between the spindle and housing for permitting relative rotation therebetween, an annular chamgo ber within the housing between the bearings, a

passage through the housing communicating with Y the container and the annular chamber, the com tainer and housing being constructed and arranged for pumping oil through the passage into as the annular chamber, means within the annular chamber for feeding oil therein to thebearings,

the spindle and housing .!or permitting relative rotation therebetweenvan annular chamber-with as in the housing between the bearings; a-flange on the housing extending into the container, a passage through the housing communicating with the annular chamber and with the container adiacent its internal peripheral wall, means witha) in the annular chamberior teeding oilther'ein to the bearings, and means for rotating the spin 9 a rnountingior a spinning and-twisting deit vice comprising a rotatable spindle, a cup-like container for oil fixed to the spindle. a bearing housing about the spindle for supporting a wound packageaxially spaced ball bearings between the spindle and housing for permittin relative rotation therebetween, 'an annular chamber within the housing between the bearings, a flange housing extending into the container, a passage through the housing communicating, with the annular chamber and with the container adjacent its internal peripheral wall, means within the annular chamber for feeding oiltherein into the bearings, a wicking sleeve having its upper portion in contact with the spindle and a por-i tion of the external periphery of the spindle being tapered from the point or contact with the wicking sleeve to a point adjacent the upper bearing, and means for rotating the spindle.

1-0.-Aj mounting fora spinning and twisting device comprising a rotatable spindle, a coni tainer for oil fixed to the spindle, a bearing housing about the spindle for supporting a wound package, axially spaced ball bearings between 'thespindle and housing for permitting relative rotation therebetween, an annular chamber with- 1 in the housing between the bearings, a passage through the housing communicating with the container and the annular chambe means withinith'e annular chamber for fee ng oil therein to the bearings; another container for oil fixed ,to the spindle below the first, another bearing "housing about the spindle and extending within the second container,-a bracket for supporting the second'bearing housing, axially spaced ball bearings between the spindle and the second housing i'or permitting relative rotation therebetween, an annular chamber within the second housing between the bearings,a passage through .thesecond housing communicating with the container andthe annular chamber, means within v the second annular chamber for feeding oil there-' in to the bearings; and means for rotating the j cannon amt-son.

spindle. r 

